Orientation Transform into a Fish on Your Holidays Certificate of Fitness for Diving Certification Card (C-Card) Dive Equipment Mask Snorkel Fins Gloves/Boots Diving suits Weights Tank Regulator Backup Scuba BC Gauge Other Equipment 1 Other Equipment 2 Other Equipment 3 Equipment Setup Equipment Maintenance Underwater Environment Topography and Artificial Structures 1 Topography and Artificial Structures 2 Ocean Conditions 1 Ocean Conditions 2 Poisonous Sea Life 1 Poisonous Sea Life 2 Aggressive Sea Life Underwater Physiology Light and Color Sound Drag/Buoyancy Heat Absorption Air Composition Breathing and Circulation Mechanism Diver Breathing /Air Consumption Pressure Pressure and Gas Volume Lung Over-expansion Injury Air Embolism Gas Poisoning Hyperventilation Skip Breathing Decompression Sickness (DCS) The Human Body’s Air Spaces Squeeze and Equalization Specific Squeeze Types Reverse Block and Equalization Specific Body Air Cavities and Reverse Block Plan and Rules Diving Site Selection Leader and Member Buddy System Equipment Health Maintenance Refresher Course Cancellation and Modification Emergency Plan Communication Air Consumption Ratio Dive Table Change of the internal nitrogen quantity Comparison of the internal nitrogen quantity Constitution of the Dive Table No-decompression Dive Limit Residual Group Surfacing Time Nitrogen Disappearance Time Surface Interval Time No-decompression Dive Limit for the second diving Residual Nitrogen Time Residual Group for the second diving Decompression Stop Safety Stop Time Until Safe To Fly Other attention Work Sheet Making a Dive Plan Multi-Level Diving Manners Diving Skills Donning Snorkel Set Snorkel Clear Fin Work Donning the Weight Belt Head First Equipment Setup Entry Descent Regulator Clear Mask Clear Regulator Recovery Buoyancy Control BC Donning and Removal Weight Belt Donning and Removal Equipment Release Dealing with Emergencies 1 Dealing with Emergencies 2 Dealing with Emergencies 3
Air Composition
In the air we usually breathe, Oxygen makes up 21%, Nitrogen makes up 78% and other gases makes up 1%.
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Air Composition
